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Finding the Fourth Proportional to 7,580,798.92, 11,367,819.54 and 2,188,167.28

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Solution

The fourth proportional to 7,580,798.92, 11,367,819.54 and 2,188,167.28 is: 3,281,275.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,580,798.92 : 11,367,819.54 = 2,188,167.28 : x
  2. Step 2: Convert to fraction form
    7,580,798.92/11,367,819.54 = 2,188,167.28/x
  3. Step 3: Cross multiply
    7,580,798.92x = 11,367,819.54 × 2,188,167.28
  4. Step 4: Simplify right side
    7,580,798.92x = 24,874,690,762,372.65
  5. Step 5: Solve for x
    x = 24,874,690,762,372.65/7,580,798.92
  6. Step 6: Final answer
    x = 3,281,275.63

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.